Mario is x years old. In 7 years, he will be 19. Which equation can be used to determine Mario’s present age?(1 point) Responses x − 7 = 19 x minus 7 equals 19 x − 19 = 7 x minus 19 equals 7 x + 7 = 19 x plus 7 equals 19 x + 19 = 7

Question

An abstract representation of a mathematical problem. Picture a boy standing near a timeline with two markings on it. One marking represents the current year, and the other represents a year seven years in the future. The current year has a balanced scale near it, symbolizing an equation. On one side of the scale, there's a symbol 'X', representing the boy's current age. On the other side, there are two symbols: '7' and '19', indicating the possible age formula for the boy in future years. Make sure there is no textual content.

Mario is x years old. In 7 years, he will be 19. Which equation can be used to determine Mario’s present age?(1 point) Responses x − 7 = 19 x minus 7 equals 19 x − 19 = 7 x minus 19 equals 7 x + 7 = 19 x plus 7 equals 19 x + 19 = 7

Answer 1

To determine Mario's present age, we need to set up an equation using the given information.

Let's represent Mario's present age as x.

According to the problem, in 7 years, Mario will be 19. This can be written as: x + 7 = 19.

Thus, the correct equation to determine Mario's present age is x + 7 = 19.

Answer 2

To determine Mario's present age, we can set up an equation based on the given information.

It is given that in 7 years, Mario will be 19 years old. So, we can say that:

Mario's age in the present + 7 = 19

Let's represent Mario's present age as x. So, the equation becomes:

x + 7 = 19

We can solve this equation to find Mario's present age. To do so, we need to isolate x on one side of the equation.

Subtracting 7 from both sides of the equation, we get:

x + 7 - 7 = 19 - 7

This simplifies to:

x = 12

Therefore, the correct equation to determine Mario's present age is:

x + 7 = 19.

Answer 3

The correct equation would be:

x + 7 = 19